Fertilizer, insecticide, and fungicide.



UNITED STATES PATENT OFFICE.

WILLIAM FREDERICK KEATING STOCK, OF DARLINGTON, ENGLAND.

FERTILIZER, INSECTICIDE, AND FUNGICIDE.

No Drawing.

To all whom it may concern:

Be it known that I, WILLIAM FREDERICK KEATING STocK, a subject of theKing of Great Britain, of 9 Houndgate, Darlington, in the county ofDurham, England, have invented a certain new and Improved Fertilizer,Insecticide, and Fungicide, of which the following is a. specification.

The present invention relates to a compoundsuit-able for use as afertilizer, inseoticide, and fungicide and consists in properlycombining certain substances which will be hereinafter described in amanner so as to obtain efiects in the use of the ma terial notheretofore known in connection with the use of any one of the componentingredients.

The improved compound consists of spent oxid, a by-product of thepurification of coal gas, carbon waste, which is produced when certainalkaline liquors obtained in the manufacture of paper are treated forthe recovery of alkali, and crude drained naphthalene, a. product of thedistillation of coal and coal tar.

It is well known that when coal gas is purified from sulfur by means ofoxid of iron, sulfid of iron is formed until the power of the iron oxidto absorb sulfur ceases, and the spent oxid is removed from the purifierand exposed to the action of air and moisture. Oxidation of the sulfidof iron is set up causing the separation of sulfur in the free state.While the present invention is not limited to the use of any one form ofspent oXid, I may employ any spent oxid containing uncombined sulfur asabove described.

The carbon waste, forming one of the ingredients of the compoundconstituting the present invention, is preferably that which is producedwhen the alkaline liquors which remain after boiling esparto grass orwood pulp with caustic soda are treated for the recovery of alkali.These alkaline liquors are usually evaporated in vacuum evaporators toa. small bulk and the evaporated mass is transferred to a rotary furnaceand fired, after which the charge is lixiviated with water for theremoval of alkali, and the carbon waste is left as a black insolubleresidue. The scope of the present invention is such Specification ofLetters latent.

Patented Sept. 19, 1911.

Application filed March 31, 1911. Serial No. 618,065.

however, that any carbon waste obtained by the action of heat uponcellulose may be used. These forms of carbon waste act as absorbents ofnaphthalene vapors and at the same time as deodorizers of the foulsmelling gases arising from the spent oxid.

For general application, one part of spent oxid, one part of carbonwaste, and one part of crude drained naphthalene are compounded in themanner hereinafter described, so that the resulting compound consists inof each ingredient, but these proportions may be varied to meet thespecial requirements.

When manufacturing the compound, the spent oxid and carbon waste aredried in a kiln or on a drying floor. They are then mixed with the crudedrained naphthalene either by hand or by a suitable mechanical mixer.The mixture is next passed through a. mill and ground to a condition inwhich it will pass through a sieve of suitable mesh (say from to inch).

The improved fertilizer, insecticide and fungicide which has beendescribed may be used in several ways. It may be dug or plowed into theland before planting or sowing a crop. It may be applied as a topdressing, where a. crop has been attacked either by grubs, caterpillarsor flies. It may be used as a powder to be applied to plants in order tokill fungous growths, as in the case of mildew. The compound can also beapplied to manure heaps during the accumu lation of the same, in orderto destroy insect larvae and fungous growths.

I claim:

1. A compound capable of use as a fertilizer, insecticide and fungicide,consisting of spent oxid, carbon waste, and crude drained naphthalene.

2. A compound capable of use as a fertilizer, insecticide and fungicide,consisting of substantially one part spent oxid, one part carbon waste,and one part crude drained naphthalene.

3. A compound capable of use as a fertilizer, insecticide and fungicide,consisting of spent oXid of iron from gas works, carbon waste fromalkaline liquors obtained in paper manufacture, and crude drainednaphthalene.

4. A compound capable of use as a fer- In testimony whereof I havehereunto set tilizer, insecticide and fungicide, consisting my hand inpresence of tWo subscribing Witof spent oXid of iron containinguncomnesses this 17th day of March 1911. bined sulfur from gas Works,carbon Waste WILLIAM FREDERICK KEATING STOCK.

5 from the alkaline liquors obtained in the Witnesses:

manufacture of paper, and crude drained THOMAS VVlLLIAM GUN'rER,naphthalene. VILLIAM SPENCER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington. D. G.

